Qos Scheduling Mechanism; Qos Output Scheduling - D-Link DGS-3600 Series User Manual

No Limit
Rate (64-
10000000)
Click Apply to set the bandwidth control for the selected ports. Results of configured Bandwidth Settings will be displayed in the
Port Bandwidth Table.

QoS Scheduling Mechanism

Changing the output scheduling used for the hardware queues in the Switch can customize QoS. As with any changes to QoS
implementation, careful consideration should be given to how network traffic in lower priority queues is affected. Changes in
scheduling may result in unacceptable levels of packet loss or significant transmission delay. If the user chooses to customize this
setting, it is important to monitor network performance, especially during peak demand, as bottlenecks can quickly develop if the
QoS settings are not suitable.
To view this window, click QoS > QoS Scheduling Mechanism, as shown below.
The Scheduling Mechanism has the following parameters.
Parameter
Strict
Weight fair
Click Apply to implement changes made.

QoS Output Scheduling

QoS can be customized by changing the output scheduling used for the hardware classes of service in the Switch. As with any
changes to QoS implementation, careful consideration should be given to how network traffic in lower priority classes of service
is affected. Changes in scheduling may result in unacceptable levels of packet loss or significant transmission delay. If choosing to
customize this setting, it is important to monitor network performance, especially during peak demand, as bottlenecks can quickly
develop if the QoS settings are not suitable.
To view this table, click QoS > QoS Output Scheduling, as shown below.
®
xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch
Both. This setting will determine whether the bandwidth ceiling is applied to receiving,
transmitting, or both receiving and transmitting packets.
This drop-down menu allows you to specify that the selected port will have no bandwidth
limit. Enabled disables the limit or limits the bandwidth on a given port.
This field allows the user to enter the data rate that will be the limit for the selected port.
A rate can only be entered if the No Limit feature is Disabled.
Figure 9- 3. QoS Scheduling Mechanism window
Description
The highest class of service is the first to process traffic. That is, the highest class of service
will finish before other queues empty.
Use the weighted round-robin (WRR) algorithm to handle packets in an even distribution in
priority classes of service.
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